Harrow lift



Oct. 1,1929. I. NICHOLSON 1,730,083

' HARROW. LIFT Filed Nov. 5, 1926 2 Sheets-Shet 1 hrverrfor LI N ac holsorg F T E v I 0 a #X X Patented st. 1, 1929 area s mates HARROW LIFT Application filed November 5, 1926, Serial No. 1 46 ,53 2, anc1in Canada September 29, 1926.

The invention relates to improvements in harrow lifts and an object of the invention is to provide a machine embodying ,a plurality of harrows and wherein provision is made for the easy and quick lifting of the rear ends of the harrows in order to permit them to clear themselves of weeds or other accumulations such being accomplished without the operator having to leave his seat. A further object of the invention is to provide an arrangement whereby each harrow can be separately lifted as desired by the at tendant. I v v A further object of the invention is to con; struct the appliance in a simple, durable'and inexpensive manner and so that it will not incur much additional draft.

A further object is to construct the device so that it can be readily adapted for use with the existing harrows and harrow carts so that a farmer will not require to buy an entire outfit if he has his own harrows and cart. y

With the above more important objects in view, the invention consists essentially in the arrangement and construction of parts hereinafter more particularly described, reference being had to the accompanying drawings, in which Fig. 1 is a plan view of a portion of the machine.

Fig. 2 is a vertical sectional view at 2-2 Figure 1. Fig. 3 is a vertical sectional'view at 3-3 Figure 1. H

Fig. 4. is an enlarged detailed vertical sectional view at 4- 1 Figure 3.

Fig. 5 is a plan view of a portion ofthe device and showing the arrangement where it is to be attached to an existing harrow cart.

Fig. 6 is an enlarged detailed vertical sectional view at 66 Figure 5.

In the drawings, like characters of reference indicate corresponding parts in the several figures. I will first describe the, machine as shown in Figures 1, 2, 3 and ff and in this connection I might state that I really provide a specially constructed harrow cart to which the lifting attachment is connected.

The draw beam li's'of the ordinary type and the harrows 2 are connected thereto by chains 3 inthe usual manner; Centrally to the draftbeam I secureat 4 and 5 the forward forked ends of a comparatively short bar 6, the rear end of which is also forked as indicated at 7 and 8 and {support a comparatively short cross beam 9 bolted thereto at 10.,A brace bar 11 extends between the beam and the bar 6 and to'this, I secure the customary seat 12. I 1

The ends of the beam. receive rotatably the up turned cranked ends- 13 and 14. of rearwardly extendingshafts l5 and 16which have their ends terminating. in out turned spindles 17 and 18 on which rear castor wheels" 19 and 20; are rotatably mounted. The bar6 and theother described parts associated therewith form in reality a harrow cart of special design which is connected at l and 5 to the customary harrow draw beam 1.

- The bar 615 provided with two adjacent holes 21and 22 which receive pivotally the down turned inner ends 23 and 2 1 of'a pair of similar outwardly extending shafts 25 and 26, these shafts having their outer ends supported by similar ground wheels 27, there being collars 28 secured to the shafts at the inner sides of the ground wheels. The shafts are parallel with the draw beam 1 and each collar is provided with an eye 29 to which I'attach the rear end of a forwardly extending draft rod 30, the forward end of the'rodbeing connected by an eye bolt 31 to the ends of the draw beam in each instance. These draftrods hold the outer ends of the shafts from swinging rearwardly but they allowthe shafts to move up. and down to accommodate the undulations in the land.

It will be here observed that the rear ends of the harrows terminate a short distance rearwardly of the shafts. The present machine is designed for six harrows, there being three at eachside of the centre line 2-2 Figure ,1. The down turned ends of the shafts 25and 26 are fitted with cotter pins 25which engage washers 25* underlying the bar 6. i I

In the present instance; eachshaft carries three telescoping sleeves 325 33 and 34:, the

sleeve 32 being comparatively long, that 34 comparatively short and that 33 of intermediate length. The sleeve 32 extends from the inner end of the shaft well out towards the ground wheel terminating in a location more or less centrally of the rear end of the outermost harrow. The sleeve 33 is rotatably mounted on the sleeve 32 and has its out er end terminating approximately midway of the second harrow from the endand the sleeve 34 is rotatably mounted on the sleeve 33 and terminates more or less midway of the centrally located harrow.

The inner ends of the sleeves project one beyond the other in step-like formation and to the inner end of each sleeve I permanently secure a band 35, the bands preventing inward end shifting of the sleeves" and being also utilized to support foot pedals 36, there being a foot pedal within convenient range of the seat for each sleeve. -The sleeves are prevented from end shifting outwardly by collars 37 provided.

The outer end of each sleeve is fitted with a crank 38 which extends rearwardly and centrally overlies the rear end of the adjacent harrow. Chains 39 and 40 connect the cranks to the ends of the harrow so that when the cranks are raised, the rear end of the harrow is evenly lifted from the ground. The cranks are carried in the present instance by split'bands 41 jammed by bolts 42 to the sleeves. This permits me to adjust the cranks to suit existing conditions as they can be either rotated around the sleeves or shifted endwise thereon; Obviously the Weight of the chains and of the cranks would tend to rotate the sleeves and I overcome this by fastening a stop bar 43 to the brace bar 11 which stop bar extends behind and engages with the shanks of all the foot pedals. The bar is so placed that there is practically no slack permitted in the chains 39 and/10 According to the above arrangement, it will be obvious that as the machine is drawn over the ground, the attendant can lift the rear end of any harrow by pressing on the foot pedal controlling that harrow as the forward movement of the foot pedal will cause the raising of the crank controlled thereby and the consequent lifting of the harrow through the chains 39 and 40. By so raisingthe rear end of any harrow, all weeds and other undesirable collected material will be clearedv from the harrow as the machine advances. As before stated, the ground wheels can follow the fluctuations in theland surface and the wheels 19 and 20 will obviously swivel when a turn is made.

It will be observed thatthe lifting attachment can be readily removed by simply withdrawing the cotter pins 25 and undoing the bolts 31 and the chains 39 and 40.

The lifting attachment hereinbefore described can be utilized on existing harrows and harrow carts, such as in instances where a farmer has the latter equipment and does not desire to go to the expense of buying the specially designed cart which I have hereinbefore described.

, In Figure 5 I have shown one of the well known types of harrow carts which presents the customary pole 44 provided rearwardly with a seat and having the forward end attached at 45 to the draw beam and the rear end supported by steering wheels 46. With such a harrow cart it is only necessary to provide a plate such as that 47 attached to the pole, the plate having openings 48 and 49 therein corresponding to those 21 and 22 and adapted to receive the inner cranked ends of the shafts 25 and 26. The plate will have the rear end thereof bent upwardly and their rearwardly, the rear end forming a foot rest 50. To the upturned end of the plate, I will then secure a bar 51 corresponding to that 43 against which the shanks of the foot pedals will engage. The rest of the attachment is the same as previously described. Obviously in this arrangement, it is simply a matter of providing the existing harrow cart with pivot bearings for the down turned ends of the shafts25 and 26 and a striker or stop bar for holding the shanks of the pedals.

What I claim as my invention is I. The combination with a plurality of drawn harrows, of suitably supported outwardly extending shafts overlying the rear ends of the harrows, telescoped sleeves mounted on the shafts, there being a sleeve for each harrow, manually operated means secured to the inner ends of the sleeves for rotating the sleeves and lifting connections between the sleeves and the harrows adapted to raise the rear ends of the harrows upon the sleeves being rotated. I v

2. The combination with a plurality of drawn harrows and a harrow cart, of similar outwardly extending shafts overlying the rear ends of the harrows, said shafts having their inner ends carried by the harrow cart, a plurality of telescoped sleeves mounted on each shaft, there being a sleeve for each harrow, manually operated means secured to the inner end of each sleeve for rotating the same and a lifting means connecting each sleeve to the rear end of the underlying harrow, said lifting means being actuated by the rotationof the sleeve carrying the same.

3. The combination with a draw beam, a plurality of harrows drawn thereby and a harrow cart attached to the draw beam, of outwardly extending shafts overlying the rear ends of the harrows and having their inner ends carried by the harrow cart, ground wheels supporting the outer ends of the shafts, a draft connection between the outer ends of the shafts and the outer ends of the draw beam, a plurality of telescoped sleeves mounted on each shaft, there being a sleeve for each harrow, manually operated sleeve rotating means secured to the inner end of each sleeve and positioned adjacent the harrow cart and lifting cranks secured to the outer ends of the sleeves and connected to the rear ends of the barrows.

4. The combination with a draw beam, a plurality of harrows drawn thereby and a harrow cart attached to the draw beam, of a pair of outwardly extending shafts overlying the rear ends of the harrows and having their inner ends pivotally carried by the harrow cart, ground wheels rotatably mounted on the outer ends of the shafts, a draft connection between the outer ends of the shafts and the ends of the draw beam, a plurality of telescoped sleeves of varying length rotatably mounted on the shafts, there being a sleeve for each barrow, a foot pedal secured to the inner end of each sleeve, a stop bar carried by the harrow cart and normally engaging the rear side of each pedal, a lifting crank secured to the outer end of each sleeve, there being a lifting crank located centrally over the rear end of each harrow and lifting chains connecting the rear end of each crank with v the rear end of the underlying harrow.

Signed at Winnipeg this 6th day of October,1926.

LEONARD I. NICHOLSON. 

